Surname Tetsuto (Tetsuto 
) , worldwide, is a rare last name. The last name Tetsuto is habitual in Japan, where it is a very rare surname, and Chile, where it is an extremely rare surname. More prevalently, Tetsuto is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Tetsuto | Brazil, Chile, United States, Japan |